/*

 * Licensed to the Apache Software Foundation (ASF) under one

 * or more contributor license agreements.  See the NOTICE file

 * distributed with this work for additional information

 * regarding copyright ownership.  The ASF licenses this file

 * to you under the Apache License, Version 2.0 (the

 * "License"); you may not use this file except in compliance

 * with the License.  You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

/**

 * Defines {@link com.bff.gaia.unified.sdk.transforms.PTransform}s for transforming data in a pipeline.

 *

 * <p>A {@link com.bff.gaia.unified.sdk.transforms.PTransform} is an operation that takes an {@code

 * InputT} (some subtype of {@link com.bff.gaia.unified.sdk.values.PInput}) and produces an {@code

 * OutputT} (some subtype of {@link com.bff.gaia.unified.sdk.values.POutput}).

 *

 * <p>Common PTransforms include root PTransforms like {@link com.bff.gaia.unified.sdk.io.TextIO.Read}

 * and {@link com.bff.gaia.unified.sdk.transforms.Create}, processing and conversion operations like

 * {@link com.bff.gaia.unified.sdk.transforms.ParDo}, {@link com.bff.gaia.unified.sdk.transforms.GroupByKey},

 * {@link com.bff.gaia.unified.sdk.transforms.join.CoGroupByKey}, {@link

 * com.bff.gaia.unified.sdk.transforms.Combine}, and {@link com.bff.gaia.unified.sdk.transforms.Count}, and

 * outputting PTransforms like {@link com.bff.gaia.unified.sdk.io.TextIO.Write}.

 *

 * <p>New PTransforms can be created by composing existing PTransforms. Most PTransforms in this

 * package are composites, and users can also create composite PTransforms for their own

 * application-specific logic.

 */

@DefaultAnnotation(NonNull.class)

package com.bff.gaia.unified.sdk.transforms;



import edu.umd.cs.findbugs.annotations.DefaultAnnotation;

import edu.umd.cs.findbugs.annotations.NonNull;